Washer-cutter



. (No Model.) l

H. E. KOEPKA.

WASHER GUTTER. No. 310,527; Patented Jan. 6, 1885.`

zzzz A l WITNESSES; Jf lNVENTOR..

ATTORNEYS.

*UNITED STATES PATENT Grrrc 1 WASHER- CUTTER.

SPECIFICATION forming part of Letters Patent No. 310,527, dated January 6, 1885.

Application tiled October 521, 1884.

To all whom, t may concern:

Re it known that I, HENRY E. KOEPKA, of St. Johnsbury, in the county of Caledonia and State ofVermont, have invented certain new and useful Improvements in Vasher-Cutters; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the aecompanying drawings, which form a part of this speciication, and in which- Figure 1 is a side view of my improved washer-cutter. Fig. 2 is a similar view of the same with the tubular binding-nut removed, and Fig. 3 is a vertical cross-section.

Similar letters ol' reference indicate corresponding parts in all the figures.

My invention has relation to that class of devices for cutting washers of leather, rubber, vulcanized fiber, or similar material in which two euttingbits project from the ends ot two arms sliding adjustably in a'slot in the lower cnd of a shank; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, A denotes the stem or shank ot' the device. the upper end of which is squared oft and made tapering, so that it may beinscrtcd into the socket of an ordinary bit-brace. At the lower end of the stem A, and made in one piece therewith, is a llaring head or collar, B, which has a diametrical notch or recess, b, as shown in Fig. .5. The cylindrical part (l below this head has a slot, I), for the insertion of the adjustable arms 'E and F of the cutting-bits E and F, the lower end ol' the part C below the slot l) being screw-threaded, as shown at ("r, and having a screnvthrcaded central socket, g, for the insertion of the threaded shank l-l of the steel point H, which has a squared head, 17, so that it may be readily screwed into the socket and again removed by the use ol' a suitable key or a small wrench.

.T is a tubular cylindrical nut, which has a milled ilangc, l. \Vl1en this nut is screwed upon the threaded part G,it will press against the under side of the lowermost arm, F, and thus bi nd the arms E and F together, forcing the upper arm up into the transverse slot or recess b in the h-ead Ii. This recessed head relieves the slotted part (l from a great porA (No model.)

tion of thestrain, that being the weakest part of the device.

If desired, the sliding and adjustable arms E and F may be provided with a scale, by means of which their proper relative position may easily be adjusted according to the size of washers which it is desired to cut.

Frein the foregoing description the manner of using this device will be readily understood without requiring extended explana` tion. By loosening the tubular nut J the bits may easily be adjusted in their proper relative position7 after which the nut is again `t-ightened down, so as to force the upper bitarm up into the transverse recess in the head or enlargement at the lower end of the same. It will be seen that the tubular nut, being upon the lower end of the shank below the bit-arms and surrounding the pivotal point, the said nut will prevent the said point `from being forced too`far into the material from which the washer is cut, and by bearing with its lower end against the upper surface of the material it will support the shank in a vertical position, so asto cause the bits to cut the washer of a perfectly true circular shape, preventing any wabbling ofthe tool, whereby t-he eut might diverge from the true circular form. other one may be readiy substituted for it.

Having thus described my inventioml claim and desire to secure by Letters Patent of the United Statesl 1; The combination ofthe stem or shank A, having slotted part C and screw-threaded end G, adjustable arms E and F, having bits E and F, tubular nut J, having milled flange K, and removable Apoint H, substantially as and for the purpose shown and set forth.

2. rlhc combination ofthe stem or shank A, having the head `or enlargement B, provided with transverse slot or recess b, and slotted part (l, the slot l) of which registers with the recess b, adjustable arms E and F, having bits E and F', tubular nut (l, having milled flange K, and removable point ll, substantially as and for the purpose shownand set forth. v

ln testimony that l claim the foregoing as my own I have hereunto affixed my signature in p rcsence oil two witnesses.

Titliessesr HENRY ERDMN KOEPKA.

A. A. Massai', XVM. T. .To'HNsoN- W'hen the point H becomes dull, an- 

